Improvement in railway-frogs



vwvvwv-v w www mvv lUNITED STATES PATENT Enron.

WILLIAM WHARTON, JR., OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THEVVHARTON RAILROAD SWITCH COMPANY, OF SAME PLACE.

IM PROVEM ENT IN RAILWAY-FROGS.

Specification forming part of Letters Patent No. 207,328, dated August20, 1378; application filed June 1'2, 1878.

To all whom 'it may concern:

Be it known that I, WILLIAM VVHARTON, J r., of Philadelphia,Pennsylvania, have invented a new and useful Improvement inRailroad-Frogs, of which the following is a specii`1- cation:

My invention consists of an improvement, fully described hereinafter, inthat class of frogs in which a movable wing-rail is combined with aguide for preventing the vertical displacement and lateral tilting ofthe said rail.

In the accompanying drawing, Figure 1 is a plan view of a frog with myimprovement; Fig. 2, a perspective View of the end of the movable rail;Fig. 3, a modification of Fig. 2, and Fig. 4C a vertical section on theline l 2, showing the guide adapted to the end of the movable rail.Figs. 2, 3, and 4 are drawn to a larger scale than Fig. l.

The point A and xed wingrail B are secured to a suitablefoundation-plate, H, and to the cross-ties of the track in the usualmanner. B is the movable wing-rail, bearing on the foundation-plate, andcaused to bear again st one side of the point-rails, either by its ownelasticity or by any suitable spring. A bolt, a, for instance, passingthrough both of the wingrails and through boxes b b containing rubber,or spiral springs may be used for this purpose.

The movable rail is cut down lor notched at near its outer end, in themanner best observed in the perspective view, Fig. 2, or as shown inFig. 3, and the staple-like guide l), secured to the foundation-plate,is so adapted to the notch or recess in the rail that, while the lattercan be moved to and fro freely, the guide not only prevents the verticaldisplacement of the rail, but effectually prevents it from being twistedover in the direction of the arrow when acted on by the lian ges of thecarwheels.

I do not desire to claim, broadly, the combination of the movablewing-rail of a frog with a guide to prevent the said rail from beingtilted or displaced vertically; but

I claim as my invention- The combination, in a frog, of a movablewing-rail, having its tread and web portion removed at or near its endto form a recess, fr, with the guide D adapted to the said recess, asset forth. I

In testimony whereof I have signed my name to this specification in thepresence of two subscribin g witnesses.

WM. WHARTON, J R.

Vitnesses:

HUBERT HowsoN, HARRY SMITH.

